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公开(公告)号：EP1832862A1
公开(公告)日：2007-09-12
申请号：EP05824558.0
申请日：2005-12-28
发明人： ONISHI, Naoki c/o NIHON DEMPA KOGYO CO., LTD. , SHIOBARA, Tsuyoshi c/o NIHON DEMPA KOGYO CO., LTD.
IPC分类号： G01N5/02
CPC分类号： G01N5/02 , G01N29/022 , G01N29/036 , G01N29/222 , G01N2291/0255 , G01N2291/0256
摘要： An object of the present invention is to avoid the instability of frequency measurement caused by spatial connection between quartz sensor adjacent to each other when a plurality of quartz sensors including a quartz resonator which varies the national frequency due to adsorption of an object to be detected. As a concrete means for solving the problem is to provide a common measuring unit 200 to measure the variation in frequency to each oscillation circuit 51 corresponding to each quartz sensor 1 so as to switchover and connect in turn, and as for the oscillation circuits 51 excepting the oscillation circuits 51 connected to the measuring unit 200 by the switches 52 serving as the load switchover unit, the load value on the output side of the oscillation circuit 51 included (relating to the measurement) in the channels connected to the measuring unit 200 and the load value on the output side of the standby oscillation circuits 51 are made different from each other, so that the respective oscillating frequencies are forcibly separated from each other.
摘要翻译： 本发明的一个目的是避免当包括石英谐振器的多个石英传感器彼此相邻的石英传感器之间的空间连接导致的频率测量的不稳定性，石英谐振器由于吸收待检测物体而改变国家频率。 作为解决该问题的具体手段，提供一个公共测量单元200，用于测量对应于每个石英传感器1的每个振荡电路51的频率变化，以便依次切换和连接，并且除了用于振荡电路51 通过用作负载切换单元的开关52连接到测量单元200的振荡电路51，连接到测量单元200的通道中包括（关于测量的）振荡电路51的输出侧的负载值和 使备用振荡电路51的输出侧的负载值彼此不同，从而强制地将各振荡频率彼此分离。
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公开(公告)号：EP3702771B1
公开(公告)日：2023-03-15
申请号：EP20158650.0
申请日：2020-02-21
IPC分类号： G01N29/02 , G01N29/036 , G01N29/22 , G01N29/32
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公开(公告)号：EP2629090A3
公开(公告)日：2015-12-02
申请号：EP13154687.1
申请日：2013-02-08
发明人： Naka, Yoji
IPC分类号： G01N29/24
CPC分类号： H01L41/0533 , A61B8/4281 , A61B8/4461 , A61B8/546 , G01N29/24
摘要： An ultrasonic transducer (200) includes an ultrasonic transmitting and receiving portion (3), a housing (2), a driving device (6), a casing (4), a first volume compensation mechanism (12), a ventilating portion (13), a diaphragm (14), and a component. The housing (2) houses the ultrasonic transmitting and receiving portion (3), and the housing (2) seals ultrasonic propagation liquid (L). The driving device (6) is configured to drive the ultrasonic transmitting and receiving portion (3). The casing (4) houses the driving device (6). The first volume compensation mechanism (12) is configured to absorb a volume change of the ultrasonic propagation liquid (L). The diaphragm (14) divides an internal space of the casing (4) into at least a first internal space (101) and a second internal space (102). The ventilating portion (13) is configured to ventilate the first internal space (101) to outside of the casing (4). The component is disposed in a space other than the first internal space (101) in the internal space and includes a frame ground that electrically connects to an electrical circuit.
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公开(公告)号：EP2493078A1
公开(公告)日：2012-08-29
申请号：EP12156794.5
申请日：2012-02-24
发明人： Akaike, Kazuo , Kobayashi, Kaoru
CPC分类号： H03L1/00
摘要： To provide an oscillation device capable of obtaining a stable oscillation frequency by compensating for a change in oscillation frequency caused with an elapse of operating time of a quartz-crystal oscillator. A difference value ΔF between a frequency difference between first and second quartz-crystal oscillators after a predetermined period of time has elapsed from a reference time and a frequency difference between the first and second quartz-crystal oscillators at the reference time (specifically, a difference value ΔF between an amount of change in frequency in the first quartz-crystal oscillator from the reference time and an amount of change in frequency in the second quartz-crystal oscillator from the reference time) is determined. Further, when a ratio between the amount of change in the frequency of the first quartz-crystal oscillator and the amount of change in the frequency of the second quartz-crystal oscillator with respect to the elapse of time from the reference time is treated as constant, the ratio is set to a compensation coefficient of aging, and a compensation value of the frequency of the quartz-crystal oscillator for producing an output of the oscillation device is obtained based on a value corresponding to the difference value ΔF and the compensation coefficient of aging.
摘要翻译： 本发明提供一种振荡装置，该振荡装置能够通过补偿因晶体振荡器的工作时间的经过而引起的振荡频率的变化来获得稳定的振荡频率。 从基准时间起经过了规定时间后的第1和第2水晶振子之间的频率差与基准时刻的第1和第2水晶振子之间的频率差（具体地说是差分 确定第一石英晶体振荡器中的频率相对于基准时间的变化量与第二石英晶体振荡器中的频率相对于基准时间的变化量之间的值ΔF）。 此外，当第一石英晶体振荡器的频率变化量与第二石英晶体振荡器的频率变化量之比相对于从基准时起经过的时间被视为恒定 ，该比率被设定为老化的补偿系数，并且基于与差值ΔF对应的值和用于产生振荡装置的输出的晶体振荡器的频率的补偿系数 老化。
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公开(公告)号：EP2043259B1
公开(公告)日：2012-03-28
申请号：EP08165176.2
申请日：2008-09-25
发明人： Amano, Yoshiaki
IPC分类号： H01L41/22
CPC分类号： H01L41/332 , H01L41/29 , H03H3/02 , H03H2003/026 , Y10T29/42 , Y10T29/49147 , Y10T29/49156
摘要： Methods are disclosed for manufacturing tuning-fork type piezoelectric vibrating pieces. In an exemplary method a metal film (32) is formed on both surfaces of a piezoelectric wafer (10), followed by application of photoresist (36). A first metal-film-etching step etches the metal film after removal of the photoresist layer outside the profile outline of the pieces. A first piezoelectric-material-etching step etches the exposed wafer surface but not through to the rear surface. A second metal-film-etching step etches the metal film after removal of the photoresist layer from first groove regions (27). A second piezoelectric-material-etching step completes etching outside the profile outline and forms the groove regions in the arms.
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公开(公告)号：EP2432123A1
公开(公告)日：2012-03-21
申请号：EP11181223.6
申请日：2011-09-14
发明人： Yoshimoto, Susumu
CPC分类号： H03H9/725 , H03H9/0038 , H03H9/0095 , H03H9/706
摘要： There is provided a receiving side filter having a good attenuation characteristic in a pass band of a transmitting side filter in a duplexer in which balanced output is performed by the receiving side filter including a longitudinal mode resonator type filter and a pass band of the receiving side filter is set on a lower band side than the pass band of the transmitting side filter. There are provided, between an antenna port 1 and a pair of balanced reception ports 3, 3, a first ladder-type filter 24 including a series arm 22 and a parallel arm 23 each formed of a SAW resonator and a longitudinal mode resonator type filter 25, in this order from the antenna port 1 side, and a second ladder-type filter 26 having series arms 27, 27 formed of SAW resonators and respectively provided in signal paths 36, 36 that connect the respective balanced reception ports 3, 3 and the longitudinal mode resonator type filter 25 and a parallel arm 28 formed of a SAW resonator and connecting between these signal paths 36, 36.
摘要翻译： 提供一种在双工器中的发送侧滤波器的通带中具有良好的衰减特性的接收侧滤波器，其中平衡输出由包括纵模谐振器型滤波器的接收侧滤波器和接收侧的通带 滤波器设置在比发送侧滤波器的通带更低的频带侧。 在天线端口1和一对平衡接收端口3,3之间设置有包括串联臂22和平行臂23的第一梯形滤波器24，每个臂由SAW谐振器和纵向模式谐振器型滤波器 如图25所示，从天线端口1侧开始按顺序，以及第二梯形滤波器26，其具有由SAW谐振器形成的串联臂27,27，分别设置在信号路径36,36中，连接各个平衡接收端口3,3和 纵模式谐振器型滤波器25和由SAW谐振器形成并连接在这些信号路径36,36之间的并联臂28。
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公开(公告)号：EP2330743A1
公开(公告)日：2011-06-08
申请号：EP09817497.2
申请日：2009-09-30
发明人： ONISHI, Naoki , KOBATA, Tsukasa
摘要： The provision of a technique capable of determining a state where PLL control does not operate normally instantly or in advance in a frequency synthesizer that frequency-divides, A/D converts, and quadranture-detects a frequency signal from a voltage controlled oscillating unit, and extracts a rotation vector rotating at a frequency difference between the frequency signal used for the detection and the A/D converted frequency signal, and integrates a difference between a frequency of the above rotation vector and a set frequency to set an integration result as a control voltage to the voltage controlled oscillating unit.
The control voltage to be input to the voltage controlled oscillating unit is monitored, and it is determined whether or not a level of the monitored control voltage deviates from a set range determined in advance, and an unlock detection signal is output. In a structure in which the rotation vector is multiplied by a reverse rotation vector reversely rotating at a frequency determined in rough increments according to the set frequency to reduce a velocity of the rotation vector, a determination result whether or not a length of the rotation vector whose velocity is reduced (a scalar quantity) or a correction signal for gain control deviates from a range set in advance is further considered.摘要翻译： 提供一种能够在频率合成器中立即或预先确定PLL控制不能正常工作的状态的技术，该频率合成器对来自压控振荡单元的频率信号进行分频，A / D转换和象限检测，并且 提取以用于检测的频率信号和A / D转换后的频率信号之间的频率差旋转的旋转矢量，并且将上述旋转矢量的频率与设定频率之间的差积分以将积分结果设置为控制 电压提供给电压控制振荡单元。 监视要输入到压控振荡单元的控制电压，并且确定所监视的控制电压的电平是否偏离预先确定的设定范围，并且输出解锁检测信号。 在将旋转矢量乘以按照设定的频率以粗略增量确定的频率反向旋转的反转矢量，以减小旋转矢量的速度的结构中，确定旋转矢量的长度 进一步考虑其速度降低（标量）或用于增益控制的校正信号偏离预先设定的范围。
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9.发明公开Voltage controlled oscillator on quartz substrate 有权Spannungsgesteuerter Oszillator auf Quarzsubstrat
公开(公告)号：EP2320560A1
公开(公告)日：2011-05-11
申请号：EP10186367.8
申请日：2010-10-04
发明人： Tsuda, Toshimasa , Onzuka, Tatsunori , Kawahata, Kenji , Hoshigami, Hiroshi , Fujiyama, Ryouichi
CPC分类号： H03B5/1847 , H03B5/1203 , H03B5/1231 , H03B5/1243 , H03B5/1293
摘要： To provide a voltage controlled oscillator capable of being treated as a lumped constant circuit, having small size and capable of obtaining an oscillation frequency in a high frequency band. A resonance part 1 in a voltage controlled oscillator has variable capacitance elements 13, 14 whose electrostatic capacitance varies in accordance with a control voltage for frequency control input from the outside and an inductance element 11, an amplifying part 21 amplifies a frequency signal from the resonance part 1, and a feedback part 2, having feedback capacitance elements 22, 23, forms an oscillation loop together with the amplifying part 21 and the resonance part 1 by making the frequency signal amplified in the amplifying part 21 to be fed back to the resonance part 1. Further, the resonance part 1 and the feedback part 2 are provided on a quartz-crystal substrate 5.
摘要翻译： 提供能够被视为集总常数电路的压控振荡器，其具有小尺寸并且能够获得高频带中的振荡频率。 压控振荡器中的谐振部分1具有可变电容元件13,14，其静电电容根据用于从外部输入的频率控制的控制电压和电感元件11而变化，放大部分21放大来自谐振的频率信号 具有反馈电容元件22,23的反馈部分2通过使在放大部分21中放大的频率信号反馈到共振而与放大部分21和谐振部分1一起形成振荡环路 此外，共振部1和反馈部2设置在石英基板5上。
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10.发明公开PIEZOELECTRIC OSCILLATOR AND DETECTING SENSOR 审中-公开PIEZOELEKTRISCHER OSZILLATOR UND DETEKTIONSSENSOR
公开(公告)号：EP2280481A1
公开(公告)日：2011-02-02
申请号：EP09750408.8
申请日：2009-03-02
CPC分类号： G01N5/02 , G01G3/13 , G01G3/16 , G01G3/18 , G01N1/405 , G01N33/0004 , H03B5/323 , H03H3/04 , H03H9/02157 , H03H9/132 , H03H9/56 , H03H2003/0428 , H03H2003/0435 , H03H2003/0471
摘要： Objects of the present invention is to provide a piezoelectric resonator having high frequency stability and a sensing sensor using the piezoelectric resonator.
In the present invention, a piezoelectric resonator 1 has: a first oscillation area 105 which is provided in a piezoelectric piece 100 and from which a first oscillation frequency is taken out; a second oscillation area which is provided in an area 105 different from the first oscillation area 106 via an elastic boundary area 107 and from which a second oscillation frequency is taken out; and excitation electrodes 101 to 103 provided on one surface side and another surface side of the oscillation areas 105, 106 across the piezoelectric piece 100, and a frequency difference between the first oscillation frequency and the second oscillation frequency is not less than 0.2% nor greater than 2.2% of these oscillation frequencies.摘要翻译： 本发明的目的是提供一种具有高频稳定性的压电谐振器和使用压电谐振器的感测传感器。 在本发明中，压电谐振器1具有：第一振荡区域105，其被设置在压电片100中并从中取出第一振荡频率; 第二振荡区域，经由弹性边界区域107设置在与第一振荡区域106不同的区域105中，并从其中取出第二振荡频率; 并且设置在振动区域105,106的压电片100的一个表面侧和另一个表面侧上的激励电极101至103以及第一振荡频率和第二振荡频率之间的频率差不小于0.2％或更大 超过这些振荡频率的2.2％。
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